Long before the grandstands of The Open Championship fill in, Kalshi's traders have already picked their favorites to be sitting atop the leaderboard once the first 18 holes are in the books.
This particular contract asks a narrower question than a typical outright or top-10 market: who leads after round one, out of all 156 players at Royal Birkdale?
Inside Kalshi's Open Championship Round 1 Leader Market
With more than a hundred names to sort through, even the frontrunners sit in the low single digits, and more than $2.2 million has already been traded since the contract opened last month. It settles the moment the last group signs their card on Thursday afternoon.
Scottie Scheffler Edges Ahead Despite a Season Full of Close Calls
Scheffler holds a slim lead on the board, and it comes off an unusual stretch for the reigning champion.
He's collected just one victory this year to go with four runner-up finishes, and he arrived at Birkdale fresh off a missed cut at the Scottish Open that snapped a run of dozens of consecutive weekends played. His once-untouchable approach play has also cooled a bit by his own sky-high standard. Still, Scheffler called his year "solid," if "frustrating at times," and few in the field arrive with his track record on firm, fast links.
Rory McIlroy Sits Just Behind Him on the Board
McIlroy trails Scheffler by the thinnest of margins, backed by a season that includes defending his Masters title in April.
Asked this week whether chasing records drives him, McIlroy waved it off, dismissing the chase for records as "a pretty unfulfilling pursuit-" if you aren't enjoying the journey. Traders clearly see him as the closest thing to Scheffler's equal heading into round one.
Tommy Fleetwood Brings Home-Crowd Energy to the Board
Rounding out the board's next tier is Tommy Fleetwood, the Southport native who once snuck onto Royal Birkdale's fairways as a kid before he ever imagined playing an Open there.
Now ninth in the world and still chasing a first major title, Fleetwood called this week's homecoming “obviously very, very special,” with murals of him already dotting the walls around town.
Matt Fitzpatrick Is Splitting Attention Between Birkdale and a World Cup Semifinal
Then there's Matt Fitzpatrick, the world No. 3 and the highest-ranked Englishman in the field, arriving in the best form of his career with three PGA Tour titles since last summer.
He's also got somewhere else to be this week: England faces Argentina in a World Cup semifinal on Wednesday, and Fitzpatrick, a self-described soccer fan, publicly hoped the R&A would schedule him accordingly. He said, half-jokingly and half-seriously, regarding the tournament's organization and schedule: “If anyone's listening, I really hope it's a late/early.”
Of course, as a true soccer fan, he is eagerly looking forward to a historic national clash. While the afternoon start won't change his Wednesday kickoff plans, it gives him the ultimate tournament luxury: the freedom to stay up late on Wednesday night, watch the entire match, even if it stretches into grueling extra time and penalties, and sleep in on Thursday morning without the guilt of a brutal early wake-up call.
A Long Night Ahead for Royal Birkdale
By sunrise on Thursday, one of these four names, or a long shot from the other 152, will already be shaping the story of this Open. Fitzpatrick may be the only man in the field with one eye on Argentina; everyone else at Royal Birkdale has just one thing on their mind before the sun even comes up.
